/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Drawing/PreviewGeometryActor.h
Set the Material of the LineSetComponent with the given LineSetIdentifier
true if the LineSetComponent was found and updated
[UFUNCTION](Programming/UnrealArchitecture/Reference/Functions)() bool SetLineSetMaterial ( const [FString](API\Runtime\Core\Containers\FString) & LineSetIdentifier, [UMaterialInterface](API\Runtime\Engine\Materials\UMaterialInterface) * NewMaterial )